[GHC] #14377: some results not expected with the addition
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Mon Oct 23 14:35:04 UTC 2017
#14377: some results not expected with the addition
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Reporter: vanto | Owner: (none)
Type: bug | Status: closed
Priority: normal | Milestone:
Component: Compiler | Version: 8.2.1
Resolution: invalid | Keywords:
Operating System: Unknown/Multiple | Architecture:
Type of failure: Incorrect result | Unknown/Multiple
at runtime | Test Case:
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s):
Wiki Page: |
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Comment (by svenpanne):
Just a few more hints why this is not a bug (all from the Haskell Report):
* Numerical literals with a dot in it have an implicit `fromRational`
around it.
* Not surprisingly, `fromRational` forces its 1st argument to be a
`Rational`.
* The default default is `default (Integer, Double)`.
* `(**) :: Floating a => a -> a -> a`.
With that information you can figure out why e.g. the division in a) is a
different kind of division than the one in b).
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14377#comment:11>
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